01 - Heat a skillet over medium heat. Add ground beef and cook until browned, breaking apart with a spoon. Drain excess fat and transfer to crockpot.
02 - In the same skillet, add diced onion, minced garlic, and red bell pepper. Sauté for 2-3 minutes until softened. Transfer mixture to the crockpot.
03 - Add corn, diced tomatoes with juices, green chilies, black beans, and kidney beans to the crockpot. Pour in beef broth.
04 - Sprinkle taco seasoning, ground cumin, black pepper, and salt over all ingredients. Stir thoroughly to combine and evenly distribute seasonings.
05 - Cover and cook on Low setting for 6-7 hours or on High setting for 3-4 hours until flavors are melded and vegetables are tender.
06 - Taste the soup and add additional salt, pepper, or cumin if needed to achieve desired flavor profile.
07 - Ladle hot soup into bowls and top with shredded cheese, sour cream, cilantro, jalapeños, or tortilla chips as desired.